Re: serial 3G modem connection

On Thu, 2011-03-31 at 22:37 +0100, Andy Maginnis wrote:
> I have a 3G Telit modem with a USB and Serial connection. The usb
> connection
> works fine with network manager, but when I try and use the serial
> connection
> I see the following in the modem manager debug output
> ** (modem-manager:7380): DEBUG: (tty/ttyS0): could not get port's parent
> device

ModemManager will ignore most platform serial ports since most modems
these days are USB, and we can't really autodetect platform serial
devices.  So there's a whitelist for platform serial ports.  What kind
of system do you have?  Can you reply with the output of "lsmod" which
might give us the kernel module that we can whitelist?


> The modem is attached to /dev/ttyS0 and I can get an internet connection
> using
> a manual pppd connection. It seems that my modem setting in NM are not
> valid for
> the modem when connected through the serial port.
> How can I get this under networkManager control?
> When I do run it manually I see the following output appear in the
> network/modem manager
> debug trace.
> NetworkManager[7393]:    SCPlugin-Ifupdown: devices added (path:
> /sys/devices/virtual/net/ppp0, iface: ppp0)
> NetworkManager[7393]:    SCPlugin-Ifupdown: device added (path:
> /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration
> found.
> ** (modem-manager:7380): DEBUG: (net/ppp0): could not get port's parent
> device
> NetworkManager[7393]:    SCPlugin-Ifupdown: devices removed (path:
> /sys/devices/virtual/net/ppp0, iface: ppp0)
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